51111102411 has 16 divisors (see below), whose sum is σ = 76202452000. Its totient is φ = 33857033184.

The previous prime is 51111102391. The next prime is 51111102421. The reversal of 51111102411 is 11420111115.

51111102411 is a `hidden beast` number, since 511 + 1 + 110 + 2 + 41 + 1 = 666.

It is not a de Polignac number, because 51111102411 - 2⁷ = 51111102283 is a prime.

It is a super-2 number, since 2×51111102411² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51111102421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6024436 + ... + 6032913.

It is an arithmetic number, because the mean of its divisors is an integer number (4762653250).

Almost surely, 2^51111102411 is an apocalyptic number.

51111102411 is a deficient number, since it is larger than the sum of its proper divisors (25091349589).

51111102411 is a wasteful number, since it uses less digits than its factorization.

51111102411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12057515 (or 12057509 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 18.

Adding to 51111102411 its reverse (11420111115), we get a palindrome (62531213526).

The spelling of 51111102411 in words is "fifty-one billion, one hundred eleven million, one hundred two thousand, four hundred eleven".